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What's the difference between Spark ML and MLLIB packages

I noticed there are two LinearRegressionModel classes in SparkML, one in ML package (spark.ml) and another one ... to convert one into another? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Get mouse deltas using Python! (in Linux)

I know that Linux gives out a 9-bit 2's compliment data out of the /dev/input/mice. I also know ... //www.computer-engineering.org/ps2mouse/) See Question&Answers more detail:os...

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c++ - Easiest way to make a cyclic iterator (circulator)?

I have an object that I want to travel in a continuous loop in a game. I have a series of coordinates in a std ... to write it in standard C++). See Question&Answers more detail:os...

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smartcard - Access the SIM Card with an Android Application?

I wonder if it's possible to access to the SIM card with an Android Application See Question&Answers more detail:os...

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c - MPI_Type_create_subarray and MPI_Gather

I have to solve a little mpi problem. I have 4 slaves processes and each of these wants to send a 2d subarray ( ... MPI. return 0; } Thanks all. See Question&Answers more detail:os...

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Android and Symbian NFC mobile development questions and answers (FAQ)

Let's share on a common place ideas about the NFC development, technology I warmly welcome any comments you ... and mobile phone development? See Question&Answers more detail:os...

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Sending a POST request from Cocoa to Tumblr

This code snippet isn't working, I'm getting an "Authentication Failed." response from the server. Any ideas ... , my Authentication is failing. See Question&Answers more detail:os...

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android - Plugin with id 'com.google.gms.google-services' not found

I have followed this link to integrate ads in my app. But it shows this error: This is my build.gradle ... error after i updated classpath error See Question&Answers more detail:os...

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jquery - Check if class already assigned before adding

In jQuery, is it recommended to check if a class is already assigned to an element before adding that class? Will ... 'label').addClass('baz'); See Question&Answers more detail:os...

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python - DateTimeField doesn't show in admin system

How come my "date" field doesn't come up in the admin system? In my admin.py file i have from django. ... True. Does anyone have any idea? See Question&Answers more detail:os...

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How to add a timeout step to Jenkins Pipeline

When you are using a free style project you can set that after 20 minutes the build is aborted if not ... Jenkins Multi Branch Pipeline Project? See Question&Answers more detail:os...

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javascript - window.open target _self v window.location.href?

I need to redirect the user using JavaScript. Which is the preferred method? window.open("webpage.htm", "_self") ... .href = "webpage.htm"; See Question&Answers more detail:os...

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angularjs - Angular directive name: only lower case letters allowed?

My code: app.directive('abcabc', function (){ alert('directive');}); // working but app.directive(' ... naming rules for Angular directive? See Question&Answers more detail:os...

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interpreter - How to use third party libraries with Scala REPL?

I've downloaded Algebird and I want to try out few things in the Scala interpreter using this library. How do I achieve this? See Question&Answers more detail:os...

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c# - The model item passed into the dictionary is of type ‘mvc.Models.ModelA’ but this dictionary requires a model item of type ‘mvc.Models.ModelB‘

I have this annoying mistake in some of my builds. There is no error in the project, because if I build ... it just fails the offending page See Question&Answers more detail:os...

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java - repository element was not specified in the POM inside distributionManagement element or in -DaltDep loymentRepository=id::layout::url parameter

I'm having a problem while deploying and here is the error message I get: [INFO] [INFO] --- maven- ... problem might be? Thanks in advance. See Question&Answers more detail:os...

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Simulating a click in jQuery/JavaScript on a link

I want to simulate a click on any link on a page using JavaScript. If that link has some function binded to ... library so that it is foolproof? See Question&Answers more detail:os...

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html - Is it possible to achieve a <fieldset>-like effect without using the <fieldset> tag?

I personally like the <fieldset> tag because of how it draws a box and puts the <legend> at the top of it, ... such as SVG or XHTML) are fine. See Question&Answers more detail:os...

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c++ - Uses for anonymous namespaces in header files

Someone asserted on SO today that you should never use anonymous namespaces in header files. Normally this is correct, ... fill in the details? See Question&Answers more detail:os...

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java - Jenkins "unable to find valid certification path to requested target" error while importing Git repository

I'm trying to build a Git repo from Jenkins using the Jenkins Git Plugin on my laptop. The Git repo ... error. Any help will be appreciated See Question&Answers more detail:os...

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.net - Why does IQueryable.All() return true on an empty collection?

So I ran into a situation today where some production code was failing precisely because a method performed exactly ... correct frame of mind. See Question&Answers more detail:os...

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c# - Show row number in row header of a DataGridView

Is it possible to show row number in the row header of a DataGridView? I'm trying with this code, but ... to set some DataGridView property? See Question&Answers more detail:os...

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c# - Insert variable values in the middle of a string

In C#: If I want to create a message like this: "Hi We have these flights for you: Flight A,B,C,D. Which one ... a way to do it all at once? See Question&Answers more detail:os...

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delphi - Which is preferable: Free or FreeAndNil?

What is the basic difference between Free and FreeAndNil? Is FreeAndNil = Free + Nil? When should I use Free and when should I use FreeAndNil? See Question&Answers more detail:os...

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linux - /dev/random Extremely Slow?

Some background info: I was looking to run a script on a Red Hat server to read some data from /dev/random ... I learned something new today. :) See Question&Answers more detail:os...

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iphone - "Pushing the same view controller instance more than once is not supported" exception

I am using the following code to retrieve some messages and putting them into my inbox. MyInboxVC *inboxVC=[MyInboxVC ... What am I doing wrong? See Question&Answers more detail:os...

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preg match - PHP preg_match and preg_match_all functions

I would like to know what the preg_match and preg_match_all functions do and how to use them. See Question&Answers more detail:os...

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In a Maven multi-module project, how can I disable a plugin in one child?

I have a maven multi-module project (boy, I've written that opening way too many times on this site). Almost all ... even possible? If so, how? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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